Rare Earth Material 20160805

Rare Earth Material 20160805
Neodymium Permanent Magnets Manufacturer – China Rare Earth Magnet Limited

Rare earth - the vitamin of modern industry
In the 1950s, rare earth was began to be used in gas lamp gauze cover, flint and carbon arc, etc., and then widely used in metallurgy, machinery, petroleum, chemical industry, glass and ceramics and other traditional industries. Rare earth has become the important elements in improving product structure, increasing the technology content and promoting the technical progress in the industry.

Permanent Magnets – NdFeB


Metal neodymium and praseodymium and neodymium alloy are mainly used in the manufacturing of NdFeB permanent magnet material. NdFeB is currently the world's strongest rare earth permanent magnet . Using NdFeB to instead of other magnetic material, which can make the devices exponentially reducing in volume and weight, thus neodymium magnets have got extremely widespread application. The main application fields include permanent magnet motor, generator, nuclear magnetic resonance imaging, magnetic separator, stereo speakers, magnetic transmission, magnetic lifting, instruments and meters, liquid magnetizing, magnetic therapy equipment and so on. NdFeB has become the indispensable functional material of automobile manufacturing, general machinery, electronic information industry and cutting-edge technology. In this century, the output of our neodymium magnet  material exceeds that of Japan, our Country became the world's largest producer and NdFeB became the fastest consuming growing rare earth functional material.

The application of rare earth in metallurgy, machinery manufacturing
Adding trace rare earth to steel can improve the strength, toughness, wear resistance and corrosion resistance of steel. Adding rare earth to aluminum, magnesium, copper and other
non-ferrous metal alloy can refine grain size and significantly enhance their comprehensive performance. Rare earth used in aluminum cable can improve the strength, electrical conductivity and corrosion resistance of the material.

Rare earth's application in glass - ceramics
Glass ceramic industry is one of the important traditional application field of rare earth. In glass industry, Rare earth is used as additive in optical glass, clarifying agent, decolorizing agent, colorant and polishing powder, which plays an important role irreplaceable by other elements.

Rare earth's application in Ni-MH power battery
Compared With the traditional chemical power source (such as plumbic acid, nickel cadmium, etc.),  Ni-MH power batteries have many excellent properties like no pollution, high specific energy, high power, fast charge and discharge, abuse resistance and so on, have wide application and market prospect.

Nanocrystalline rare earth alloy magnetic powder
The industrialization of Nanocrystalline rare earth alloy magnetic powder is adopting international advanced new technology and process of high-power high-frequency electromagnetic oscillation atomization quick-setting and pulverizing, building high yield production line of nanocrystalline rare earth alloy magnetic powder. Structure grain size is up to dozens of nanometer, which can greatly decrease the oxygen content, improve the magnetic and corrosion resistance, and can reduce the production cost, making the magnetic powder has good cost performance.

Rare earth super magnetostrictive material
New type of functional material, is mainly refers to terbium dysprosium iron magnetostrictive alloy (Terfenol - D), is dozens of times better than the traditional magnetostrictive material and piezoelectric ceramics in high scalability, so which is called the super magnetostrictive material. Quick mechanical response, high power density and big dimension change, make a breakthrough on electrical and mechanical conversion technology, which has opened up a new time of magnetostrictive materials. Rare earth super magnetostrictive material is widely used in sonar, fuel injection, liquid valves, drives and other precision control, the adjusting mechanism of space telescope and the regulator in the fields of airplane wings, is a kind of rare earth functional material with a broad development prospect, will generate an important effect in the development of advanced science, military technology and the modernization of the traditional industry.

Rare earth electro-thermal materials
Chromic acid lanthanum (LaCrO3) is a new type of functional material, can be used as high temperature electric heating element in oxidizing atmosphere, can work in high temperature of 1500 ~ 1800 ℃ for a long time, the resistance variation is less than 5%, has good corrosion resistance and chemical stability, easy to realize accurate temperature control, the using time under 1750 ℃ is more than 4000 hours. It is mainly used for precision ceramic sintering, high temperature single crystal material preparation, high temperature performance measurement and gem color processing, etc. In fuel cell, thermal resistance, high temperature conductive coating and photo-catalytic fields, it has a very good development prospect as well.

The application of rare earth in petrochemical industry
Rare earth can be used as catalyst of many inorganic and organic chemistry reactions. Used in catalytic cracking refining crude oil, it can significantly increase the productive rate of light oil.
Petroleum distilled directly gets only 15% ~ 20% of gasoline, while the achieved gasoline can reach 80% of the crude oil by adding rare earth catalytic cracking. Rare earth catalyst are also used in motor vehicle exhaust purification, synthetic rubber, paint drier, plastic stabilizer, rare earth polymer materials and many other fields.

Tags: Rare Earth Magnet, Permanent Magnet, Neodymium Magnet